Brick-machine.



No. 842,412. PATENTE!) JAN. 29, 1907. l I. MILLER.

- BRICK MACHINE. y

APPLICATION FILED HAB 7 1906 Iza A PATENTED JAN. 29, l99'7. J. MILLER. BRICK MACHINE. ARPLIoATioN FILED 1m31.190s.

2 BHEETSr-SHEET v2.

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UNrrED STAT-Es PATENT oEEroE.

JOHN MILLER, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR TO WINNER BLOCK MACHINE COMPANY, A CORPORATION OF MINNESOTA.

BRICK-MACHINE.

Specification of Letters Patent.

Patented Jan. 29, 1907.`

To (LZZ wh. 'It it muy concern:

Be it known that I, JOHN MILLER, a citizen of the United States, residing at Minneapolis. in the county of Hennepin and State of Minnesota,have invented certaicrxnew and useful Improvements in Brick-Ma ines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. My invention has for its especial object to provide an im roved. machine for making concrete or san bricks and blocks; and to thel above ends the invention consists of the novel devices and combinations of devices herein! after described, and defined in the claims.

The improved machine is illustrated in the accompanying drawings, wherein like characters indicate like parts -throughout the several i ws.A

Refring to the drawings, Figure 1 is a perspective view showingv the machine with the parts of the ask ormold-box in position for molding. Fig. 2 is a similar perspective view, but with some parts broken away and showing the formed bricks forced out of the compartments/of the flask; and Fig. 3 is a .vertical section, taken from front toward the rear, through a portion of the machine, some parts being broken away.

The numeral 1 indicatesia suitable skeleton framework, the top of which serves to support a removable pallet-boardv 3 and for thatvpurpose is, as shown, provided with rails or bars 4 5. The rail-sections 4 are, as shown, rigidly'secured on a table-like forward extension 6 of the frame 1, and the railsections 5 are, as shown, directly secured to transverse vbars 7, which in turn are secured at their ends to the side brackets ofthe frame 1. The corresponding rail-sections 4 and 5 are alined with each other, butA are spaced apart to permit the passage betweenthem of a vertically-movable flask-plate/ 8. y,This

connected at their rear ends by a vertical cross-plate 14. The rearl plate 15 of .the flask is mounted to slide from the rear tow/ard the front of the machine, and vice versa, 6o

aiid to this end it is provided at its ends with reduced squared portions 16 and projecting trunnions 17. The squared portions 16 work in horizontal slots 18, formed in the plates- 13, and hold the plate 15 in a vertical position 65 through its movements from the rear toward the front of the machine, and vice versa.

The flask is divided into a plurality of small molds of the proper size to form the bricks z by means of vertically-disposed ar# 7o ,2Gb in said plate 20. `The laterally-movable flask-plate 15, as will hereinafter mgre full appear, serves as a stripper or ejectortopus 8o' t ie formed blocks out of the compartments ofthe ask. vThis ejectorlate 15 iS pro. vided' Awith vertical slots that receive and closely i'it'the several partition-plates 19 and permit the said plate 15 to move laterally 85 and allk ythe time to maintain engagement with the* said partition-plates, The drop- 'pTate 8 at its ends works against shoulders 21,` formed at vthe forward edges of the side lates 13, and on its inner face it is provide wit h `9o notches 22, that receive the, forwardly-projectin edges of the partition-plates 19 when said p ate S is raised. y

The'bottom of the flask is formed by the detachable pallet board 3, before noted 95 .which board in the presentlinstance 1s pro vided with a plurality of small pallets 3a. The palletsa are of the same size in plan as the bricks e, and vtheyiare spaced apart far brackets of the frame 1, and they are rigidly f late v14,

plate 14, as shown, by 75 drop-plate as shown, formed as extensions of the sidel enough to permit the lower edges of the par- 10o tition-p1ates 19 to enter between them.

The fbricks are, preferaldly. formed with cavities z', and hence the cores 23 are provided/fr' These cqtes23, vof which` there are two/for each 4brick-forming compartment in 1:5 the'flaslg are secured in pairs to thevertically-,- navable supporting-blocks 9, and theyrare adapted te"- be ,passed through suitable per- ,'f forations'formed in the board 'Band pallets 3a.

'Whentlie drop-plate 8`sraised.iasshown no iiask-plate S is, 'as shown, rigidly secure/d to a pair of elongated blocks 9, which in turn are rigidly securedl to a transverse bar 10."` At its ends the bar 10 is provided withverticallydisposed bearing-sleeves 1 1, that slide loosely upon vertical guid e-rods 12, rigidly secured at their upper and lower ends 'to the side brackets ofthe frame 1. The vertically-movable 8 constitutes the front plate of the flask. The side plates 13 'of the flask ysection 6 of theframe 1.

in Figs. 1 and 3, it is held in that position by a latch-frame 24, which is pivoted at its lower portion toa transverse bar of the frame 1 and is, as shown, provided with a pair of prongs, the upper ends of which are tied together by a bar 25, and are provided with notches 26, which notches engage with the lower edge of said plate 8, as clearly shown in Fig. 3. Gravity serves to throw the latch-- frame 24 into operative position; but torelease the same from' the plate 8 I' provide a trip-lever 27, pivoted to lugs 28 on the table- At its inner end the lever 27 is provided witl a cam-nose 2Q, that engages the bar 25 of he latch-frame 24, so that when the outer end of said lever 27 is pressed downwardl said Ylatch frame will be Jforced into an inoperative position', and thereby permit the plate 8 and cores 23 to dropinto inoperative position. (Shown by dotted lines in Fig. 3 and by full lines in Fig. `2.) By reference to Fig. 3 it will be seen that when the plate 3 is in normal position itis passed upward between the abutting ends of the rail-sections 4 and 5.

Extending transversely of the machine, below the table 6 and journaled in suitable bearings in the frame 1 is a rock-'shaft 30, whichat one projecting end is provided with an operating-lever. 31 and at its intermediate portion is provided with a pair of arms 32, having slotted tree ends 33, that engage with the rounded portions ot the vertically-movable bar 10. By a lforward movement of the lever 31 vthe bar 10, and hence the dropplate 8 and cores 23, will be raised to normal positions. l(Shown by full lines in Fig.`3.) Also extending transversely of the machine and mounted in suitable bearings on each lower portion of the frame 1 is another rockshaft 34, which at each end is provided with a long arm 35 and a shorter arm 36. The free ends ot the two arms 35 are connected by a tie-rod 37, so that said arms and rod constitute. abail by means of which the 'shaft 34 may be rocked. The upper ends ot the arms 36 are slotted at 38 and engage with the projecting trunnions 17 of the ejectorplate 15. A

By reference to Fig. 3 it will be seen that when the cores 23 are in their raised positions they stan'd considerably below the'V upper` edge of the iiask made up of' the plates 8, 13, 15, andA 19. It will also be seen .that said plates all terminate at theirupper edges in the same horizontal plane. With this construction, therefore, the cavities e in the bricks 2 will not extend completely through the bricks, but will leave the upper faces ,of

thebricks flat or unbroken.

When the parts are in the position shown by fulllines in Fig. 3, the iiask ready to ,be filled with the concrete or brick-forming inaterial, which will usuallybe a wet mixture of sand and cement.

The upper surfaces ot the i pallets 3a of different thickness.

being thus iiormed, the operation of opening up the Vmold and discharging the severa bricks therefrom is as follows: First, by

pressing down on the free end of the triplever 27 the latch-frame 24 is thrown into an inoperative position, thereby releasing and allowing the drop-plate 8 and the cores 23 to drop into the inoperative position. (Shown by dotted lines in Fig. 3.) This being done, the next operation is to take hold of the Abar 27 and by drawing the same forward cause the lejector-plate 15 to move forward into the position shown in Fig. 2.

This forward movement of the ejector-plate 15forces the board 3 and its pallets 3a, together with the bricks that are formed in the several pallets, out of the several molds formed between the partitionplates 19. The bricks, together with the pal'- let-board, should then be carried away and the bricks set to dry. VThis being done, the ejector-plate 15 should be returned or moved backward'to its normal` position by a rearward movement -of the arms 35 and 36. Then an empty pallet-board of the same character as thatv above described should be again forced into position to form the bottom to the iia'sk, as `shown in Fig. 3. by a forward movement of the lever 31 the plate 8 and cores 23 should be raised to their normal positions, where they will be again lockedby the latch-plate 24. The flask of the machine is of course then ready for lling.

A machine above described has in practice been'found extremely efficient for the purposes had in view.' It is easy to operate, and bricks may be very rapidly torn ed therewith. It is important to note that the brick forired with the ntachine above described has four finished faces-to wit, one' .finished end, one finished flat face, and two iinished edge faces. Theinished end'face is formed by a downward movement of the drop-plate', the finished iiat or upper face is Then i IOC formed bya troweling action, and the two inished edge'faces arev forned by a forward movement of the brick against the engaging partition-plates 19 in certain instances and against one of the partition-plates and one of the end plates 13 in other instances. Generally stated, the nn achine is capable of producing high-grade bricks at a rapid rate of speed and at sn. all cost.

' Bricks of different length may be irade in the npachine, and to set the ejector-plate 15 in the diii'erent norirlal positions for this purpose the stop-plate 20 should be set in diiiierent positions on the plate 14, so as to partly intercept the rearward movements of the said plate 15. The thickness of the brick may be varied either (py vertical adjustments of the rails 4 an 5 or by providing Hence it f1, In a machine ofthe kind described,-a`

lask-having movable side plates, one of .Whichis movable" into a position outl of line wi th=.the mold to permit the-molded mate- :o rialto be ejected, and -the other of which is movable 'laterally to eject the molded material, substantially as described.

2.' In a machineiof the kind'described, a molding-flask having one wall-plate mounted to move vertically to and Jfrom operative position and having an opposite plate mounted to move laterally to vand from operative position, its movement `from o erative osition serving to ejeetfthe molde mazo teria substantially as described.

. 3. In a machine of the kind described, a askhaving one wall-plate mounted to move vertically to and from operative position, i and'having an opposite wall-plate mounted ito move laterallyl to and `from operative position, in combination with means fory effecting a movement of said lateralgfmovable wall-plate to ejectthe molde .material, while said vertically-movablewall-plate occu'pies its lower "iiio erativeA position, subtitions, and'havingmovable ally, of independent stantially as describe 4. Ina machine of the kinddescribed, a flask having fixe'd'endplates and Vfixed parside plates, one .of which is movableverticall .movable laterally, to leject the molded 'bricks whileI thefiirstioccupies Aits lower position, substantially asdescribed.

5. In a machine of the combination witha ilask' havingfonel side plate mounted to move vertically, and an opposite side plate mounted to move `latershafts,` having connections to' said two movable side plates, for imparting the respective movements thereto, substantially as described.

6. In a machine `oi' the kind described, the `combination` with a flask having Iopposite side plates, one of which is movable vertically, and the other of which is movable-laterally, of a latch lor normally holdingl the vertically-movable plate in 'operative position, and independent lever-actuated rockshafts having connections to said two n^ov able side plates, for imparting the respective movements thereto, substantially 'as described. .f l

7. In a machine ofthe kind described, the

combination-witha llask having oppositev side plates, one of which is movablevertically, and the other of which is lmovable laterall v, ol" a latjch for normally holding said ver-f on said frame above said rai s,

lbricks -and is slotted zshatshaviug connections to and from, operative positionfand the ot er of which isi vertical ly through the kind described, theI vlever actu ated rockticully-movable plate in operative position, a

trip-lever forreleasing said latch-rame,and lever-actuated connections A'f imparting the,v

respectivemovements to s d'twomovab e side plates, substantially as escribed:

8.' The combination with a i'arnehavi v sectioned platen-supportin rails, of a said flask hav-"- ing iixed end plates and partitions, andinov ab e side plates, one of Awhich is, movablever-` tically,

which is movable'laterally to ejeeigtl'refo'r'med -to embracesaidpartitions, and means for imp arti movements to said two mova le side'plates, substantially as described. 9. In a machineof the kindf'described, the combination with a `frame and a {laskfmounted thereon, said flask having iiXed vend-plates and arti-tions, and movable'side plates, one of W ich-iis movable vertically through the platen-supporting ortion of said frame and the. other of Whic 'is movable laterally to ect-the bricksand lthe platen supporting esame, independent lever-actuated rockfor impatinggthe 'respective .movements tolsaid movable side plates, and a latchffor normally holding said vertically-movable sid position, vsubsta'ltially as desc'ribed.v I 10. I n-a machine of ed toV support a platen, ola flask having fixed slots, one of saidside platesbeing movable platen-supportin portion of said frame, and the other ofzsai. side plates having angular portions working in the'fslotsl ofsaid end plates, and'being slotted tol embrace the said partitions, a lever-actuated rock-shaft having parallel armsconnected to the depending portions-of said vertically-movable side plate,yk a second leveractuated rock-shaft having parallel arms conof the other mov-r' nected tol end projections able side plate for moving the same laterally, and a latch normally holding said verticallyi movable side plate in operative position, sub-4 stantially as described.

Il. In a machine of` the character described, amolding-flask having. one wallplate mounted to move' vertically to and from operative'po'sition, and having an opposite plate mounted to move laterally to eject the vformed bricks, and an adjustable stop for variably intercepting the return nievements of' said laterally-movable ejector-plate, substantially as described.

In testimony whereof I ailix my signatureV ijn presence of two Witnesses.

JOHN Mitten.

betweenthe sections of sald'ralis, .j-.to. and from operativeposition, snditlisother of the respective I lates in operative the kjmidescribed, sie combination with asuitableramework ad'apt- -end plates and partitions, and movable side .-pates," said 'end plates having horizontal roo IIO 

